Occasionally a MegaRAID or SAS controller volume will list the drive members as 'Unconfigured foreign' or 'Unconfigured bad', and the volume will be inaccessible. It is possible to repair the Volume and keep the data intact using the MegaRAID or SAS controller WebBIOS.

LSI MegaRAID™ and LSI SAS™ controllers.

Answer

Steps to resolve.

Reboot the system.

Go into LSI WebBIOS by entering alt-h at boot time when prompted.

Click on a 'Unconfigured bad' drive from front screen of WebBIOS.

On the next screen, you will see an option to make 'Unconfigured good'. Select that option. Do not select any other option(s).

Repeat for all drive(s) in the volume.

Now you are back on the front page.

Click Scan device-->It will ask you if you want to import the found foreign configuration. Preview, if looks right, then go ahead and import the configuration.

Reboot and the volume and its data should be accessible.

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